Human Devt Flashcards
prenatal period includes
embryonic stage
fetal stage
kelan embryonic stage
concept to 8wks
kelan fetal stage
8wks to birth
devt landmark at 4-5 moss
grasp reflex
vigorous movement
responds to loud noises (changes muscle contraction movements heart rate)
devt landmark at 5-6 mos
retinal structures can detect bright light (changes heart rate and position)
startle reflex
devt landmark at 7 mos
eyelids open
smell and taste
sucking reflex
brain weight at birth
350g
programmed elimination of certain brain structures present at birth
rids cells who’ve served its purpose
pruning
risk factors at fetal stage
maternal stress
maternal substance use
radiation
leads to hyperactive, irritable, and low BW infants
maternal stress
leads to growth retardation , minor abnormalities, short palpebral fissures, midface hypoplasia, thin upper lip, may be ADHD
alcohol
leads to prematurity, low BW, infants, sudden infant death syndrome
smoking
leads to prematuriry, LBW, withdrawal syndrome
marijuana
leads to behavioral abnormalities
cocaine
leads to teratogenic effects
antibiotics, anticonvulsants, lithium, warfarin
leads to neonatal behavioral syndrome
selective serotonin reuptake inhibitors (SSRIs)
leads to gross deformities, stunted growth, abnormal brain function or cancer
radiation exposure 2-15 AoG
devt landmarks at newborn
refleces and survival systems
devt landmarks at 1 day old
smell mother’s milk
devt landmarks at 3 days old
distinguish mother’ voice
mastery of expression at birth to 6 mos
vocalization
differential cries
babbles
mastery of expression at 7-11 mos
responds to own name
gestures
language names
mastery of expression at 12-18 mos
single words
talks to toys
25% intelligible
highlight of emotional skill at birth-2mos
brain pathways for emotion forming
emotional behavior at birth-2mos
social smile